Thread: Unlock after upgrade to OS 3.0 ?!
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Old 07-01-2009, 08:02 PM
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Quote:
Originally Posted by Fab217 View Post
Hello,
I'm newby here.
I bought Iphone 2G on ebay.
It was unlock in OS 2.2.1 (I don't know how...)

I have done a mistake : I have done the upgrade to OS 3.0 !

Now the Iphone is deactivated and locked back on AT&T.
--> Itunes doesn't let me do the restore.
--> Itunes says "Activation not possible. SIM card not compatible. blabla..."

How can I unlock it now that Itunes doesn't let me downgrade to OS 2.x..
I was about to use redsn0w but I can not perform first step (restore) in Itunes.

If anyone can help, it would be very great !

PS : I can not use AT&T SIM card because we don't have them in Europe ;=(
Follow this tutorial: How to Unlock/Jailbreak Your iPhone 2G on OS 3.0 Using RedSn0w (Windows) Skip step two
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